Home / 13,367.88-18,435.06-9,972.38

Finding the Fourth Proportional to 13,367.88, 18,435.06 and 9,972.38

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Solution

The fourth proportional to 13,367.88, 18,435.06 and 9,972.38 is: 13,752.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,367.88 : 18,435.06 = 9,972.38 : x
  2. Step 2: Convert to fraction form
    13,367.88/18,435.06 = 9,972.38/x
  3. Step 3: Cross multiply
    13,367.88x = 18,435.06 × 9,972.38
  4. Step 4: Simplify right side
    13,367.88x = 183,841,423.64
  5. Step 5: Solve for x
    x = 183,841,423.64/13,367.88
  6. Step 6: Final answer
    x = 13,752.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.